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Finding the Third Proportional to 221,749.50 and 476,709

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Solution

The third proportional to 221,749.50 and 476,709 is: 1,024,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,749.50 : 476,709 = 476,709 : x
  2. Step 2: Convert to fraction form
    221,749.50/476,709 = 476,709/x
  3. Step 3: Cross multiply
    221,749.50x = 476,709 × 476,709
  4. Step 4: Simplify right side
    221,749.50x = 227,251,470,681
  5. Step 5: Solve for x
    x = 227,251,470,681/221,749.50
  6. Step 6: Final answer
    x = 1,024,811.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.